bubbling3.gifmulti-word fill quiz 9Fwf3 on "Patterns of reactivity"
(a doc brown worksheet for QCA KS3 science-chemistry)

Site Meter* Do online OR printout, do, return to check answers. * KS3 Science Index * EMAIL comment?query * Doc Brown's Chemistry updated June 11th 2009 *

   acid      calcium      chloride      copper      hydrochloric      hydrogen      iron      magnesium      salt      sulphate      sulphuric      zinc   
1. Metals react with acids to form a solution of a and gas is given off.

2. Complete the following word equations:

(a) + ==> iron chloride + hydrogen

(b) zinc + sulphuric acid ==> +

(c) calcium + hydrochloric acid ==> +

(d) + ==> magnesium sulphate + hydrogen

3. The following observations were made by a student when small quantities of the metals were added to dilute hydrochloric acid
ironslow bubbling
magnesiumlots of bubbles, heats up
copperno bubbles at all?
zincquite rapid bubbling, maybe heated up?

From these observations, work out the reactivity order
Most reactive: :Least reactive